“Analisis Fuel Ratio Pada Project Penambangan Di Pit 1 PT Cahaya Riau Mandiri Jobsite PT Duta Alam Sumatera: The Analysis Of Fuel Ratio On Mining Project In Pit 1 Of PT Cahaya Riau Mandiri Jobsite PT Duta Alam Sumatera”. 2023. MINERAL 8 (1): 39-46. https://doi.org/10.33019/mineral.v8i1.4097.